[1320racer]

PAC, PSI and Peterson all sell springs that are polished, which provides longer spring life than unpolished and all I’ve used for over 20 years.

Nick, I suggest you call and ask Scott Duggins aka PAR, Joe Jolly aka Sunset Performance, Phil Oakley aka Oakley Motorsports, Alan Bracey aka The Race Shop and Joey Hessling aka APD, the 5 biggest names in sportsman bracket, super classes, top sportsman and top dragster engine builders in the country about cryo for your bracket engine.